ARM: mach-shmobile: sh7372: Add USB-DMAC support

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>

diff --git a/arch/arm/mach-shmobile/clock-sh7372.c b/arch/arm/mach-shmobile/clock-sh7372.c
index c0800d8..c239ab1 100644 (file)
--- a/arch/arm/mach-shmobile/clock-sh7372.c
+++ b/arch/arm/mach-shmobile/clock-sh7372.c
@@ -509,7 +509,7 @@ enum { MSTP001,
        MSTP118, MSTP117, MSTP116, MSTP113,
        MSTP106, MSTP101, MSTP100,
        MSTP223,
-       MSTP218, MSTP217, MSTP216,
+       MSTP214, MSTP218, MSTP217, MSTP216,
        MSTP207, MSTP206, MSTP204, MSTP203, MSTP202, MSTP201, MSTP200,
        MSTP329, MSTP328, MSTP323, MSTP322, MSTP314, MSTP313, MSTP312,
        MSTP423, MSTP415, MSTP413, MSTP411, MSTP410, MSTP406, MSTP403,
@@ -538,6 +538,7 @@ static struct clk mstp_clks[MSTP_NR] = {
        [MSTP218] = MSTP(&div4_clks[DIV4_HP], SMSTPCR2, 18, 0), /* DMAC1 */
        [MSTP217] = MSTP(&div4_clks[DIV4_HP], SMSTPCR2, 17, 0), /* DMAC2 */
        [MSTP216] = MSTP(&div4_clks[DIV4_HP], SMSTPCR2, 16, 0), /* DMAC3 */
+       [MSTP214] = MSTP(&div4_clks[DIV4_HP], SMSTPCR2, 14, 0), /* USBDMAC */
        [MSTP207] = MSTP(&div6_clks[DIV6_SUB], SMSTPCR2, 7, 0), /* SCIFA5 */
        [MSTP206] = MSTP(&div6_clks[DIV6_SUB], SMSTPCR2, 6, 0), /* SCIFB */
        [MSTP204] = MSTP(&div6_clks[DIV6_SUB], SMSTPCR2, 4, 0), /* SCIFA0 */
@@ -633,6 +634,8 @@ static struct clk_lookup lookups[] = {
        CLKDEV_DEV_ID("sh-dma-engine.0", &mstp_clks[MSTP218]), /* DMAC1 */
        CLKDEV_DEV_ID("sh-dma-engine.1", &mstp_clks[MSTP217]), /* DMAC2 */
        CLKDEV_DEV_ID("sh-dma-engine.2", &mstp_clks[MSTP216]), /* DMAC3 */
+       CLKDEV_DEV_ID("sh-dma-engine.3", &mstp_clks[MSTP214]), /* USB-DMAC0 */
+       CLKDEV_DEV_ID("sh-dma-engine.4", &mstp_clks[MSTP214]), /* USB-DMAC1 */
        CLKDEV_DEV_ID("sh-sci.5", &mstp_clks[MSTP207]), /* SCIFA5 */
        CLKDEV_DEV_ID("sh-sci.6", &mstp_clks[MSTP206]), /* SCIFB */
        CLKDEV_DEV_ID("sh-sci.0", &mstp_clks[MSTP204]), /* SCIFA0 */

diff --git a/arch/arm/mach-shmobile/include/mach/sh7372.h b/arch/arm/mach-shmobile/include/mach/sh7372.h
index df20d76..51db9d3 100644 (file)
--- a/arch/arm/mach-shmobile/include/mach/sh7372.h
+++ b/arch/arm/mach-shmobile/include/mach/sh7372.h
@@ -458,6 +458,10 @@ enum {
        SHDMA_SLAVE_SDHI2_TX,
        SHDMA_SLAVE_MMCIF_RX,
        SHDMA_SLAVE_MMCIF_TX,
+       SHDMA_SLAVE_USB0_TX,
+       SHDMA_SLAVE_USB0_RX,
+       SHDMA_SLAVE_USB1_TX,
+       SHDMA_SLAVE_USB1_RX,
 };
 
 extern struct clk sh7372_extal1_clk;

diff --git a/arch/arm/mach-shmobile/setup-sh7372.c b/arch/arm/mach-shmobile/setup-sh7372.c
index cd807ee..f2a58d4 100644 (file)
--- a/arch/arm/mach-shmobile/setup-sh7372.c
+++ b/arch/arm/mach-shmobile/setup-sh7372.c
@@ -602,6 +602,150 @@ static struct platform_device dma2_device = {
        },
 };
 
+/*
+ * USB-DMAC
+ */
+
+unsigned int usbts_shift[] = {3, 4, 5};
+
+enum {
+       XMIT_SZ_8BYTE           = 0,
+       XMIT_SZ_16BYTE          = 1,
+       XMIT_SZ_32BYTE          = 2,
+};
+
+#define USBTS_INDEX2VAL(i) (((i) & 3) << 6)
+
+static const struct sh_dmae_channel sh7372_usb_dmae_channels[] = {
+       {
+               .offset = 0,
+       }, {
+               .offset = 0x20,
+       },
+};
+
+/* USB DMAC0 */
+static const struct sh_dmae_slave_config sh7372_usb_dmae0_slaves[] = {
+       {
+               .slave_id       = SHDMA_SLAVE_USB0_TX,
+               .chcr           = USBTS_INDEX2VAL(XMIT_SZ_8BYTE),
+       }, {
+               .slave_id       = SHDMA_SLAVE_USB0_RX,
+               .chcr           = USBTS_INDEX2VAL(XMIT_SZ_8BYTE),
+       },
+};
+
+static struct sh_dmae_pdata usb_dma0_platform_data = {
+       .slave          = sh7372_usb_dmae0_slaves,
+       .slave_num      = ARRAY_SIZE(sh7372_usb_dmae0_slaves),
+       .channel        = sh7372_usb_dmae_channels,
+       .channel_num    = ARRAY_SIZE(sh7372_usb_dmae_channels),
+       .ts_low_shift   = 6,
+       .ts_low_mask    = 0xc0,
+       .ts_high_shift  = 0,
+       .ts_high_mask   = 0,
+       .ts_shift       = usbts_shift,
+       .ts_shift_num   = ARRAY_SIZE(usbts_shift),
+       .dmaor_init     = DMAOR_DME,
+       .chcr_offset    = 0x14,
+       .chcr_ie_bit    = 1 << 5,
+       .dmaor_is_32bit = 1,
+       .needs_tend_set = 1,
+       .no_dmars       = 1,
+};
+
+static struct resource sh7372_usb_dmae0_resources[] = {
+       {
+               /* Channel registers and DMAOR */
+               .start  = 0xe68a0020,
+               .end    = 0xe68a0064 - 1,
+               .flags  = IORESOURCE_MEM,
+       },
+       {
+               /* VCR/SWR/DMICR */
+               .start  = 0xe68a0000,
+               .end    = 0xe68a0014 - 1,
+               .flags  = IORESOURCE_MEM,
+       },
+       {
+               /* IRQ for channels */
+               .start  = evt2irq(0x0a00),
+               .end    = evt2irq(0x0a00),
+               .flags  = IORESOURCE_IRQ,
+       },
+};
+
+static struct platform_device usb_dma0_device = {
+       .name           = "sh-dma-engine",
+       .id             = 3,
+       .resource       = sh7372_usb_dmae0_resources,
+       .num_resources  = ARRAY_SIZE(sh7372_usb_dmae0_resources),
+       .dev            = {
+               .platform_data  = &usb_dma0_platform_data,
+       },
+};
+
+/* USB DMAC1 */
+static const struct sh_dmae_slave_config sh7372_usb_dmae1_slaves[] = {
+       {
+               .slave_id       = SHDMA_SLAVE_USB1_TX,
+               .chcr           = USBTS_INDEX2VAL(XMIT_SZ_8BYTE),
+       }, {
+               .slave_id       = SHDMA_SLAVE_USB1_RX,
+               .chcr           = USBTS_INDEX2VAL(XMIT_SZ_8BYTE),
+       },
+};
+
+static struct sh_dmae_pdata usb_dma1_platform_data = {
+       .slave          = sh7372_usb_dmae1_slaves,
+       .slave_num      = ARRAY_SIZE(sh7372_usb_dmae1_slaves),
+       .channel        = sh7372_usb_dmae_channels,
+       .channel_num    = ARRAY_SIZE(sh7372_usb_dmae_channels),
+       .ts_low_shift   = 6,
+       .ts_low_mask    = 0xc0,
+       .ts_high_shift  = 0,
+       .ts_high_mask   = 0,
+       .ts_shift       = usbts_shift,
+       .ts_shift_num   = ARRAY_SIZE(usbts_shift),
+       .dmaor_init     = DMAOR_DME,
+       .chcr_offset    = 0x14,
+       .chcr_ie_bit    = 1 << 5,
+       .dmaor_is_32bit = 1,
+       .needs_tend_set = 1,
+       .no_dmars       = 1,
+};
+
+static struct resource sh7372_usb_dmae1_resources[] = {
+       {
+               /* Channel registers and DMAOR */
+               .start  = 0xe68c0020,
+               .end    = 0xe68c0064 - 1,
+               .flags  = IORESOURCE_MEM,
+       },
+       {
+               /* VCR/SWR/DMICR */
+               .start  = 0xe68c0000,
+               .end    = 0xe68c0014 - 1,
+               .flags  = IORESOURCE_MEM,
+       },
+       {
+               /* IRQ for channels */
+               .start  = evt2irq(0x1d00),
+               .end    = evt2irq(0x1d00),
+               .flags  = IORESOURCE_IRQ,
+       },
+};
+
+static struct platform_device usb_dma1_device = {
+       .name           = "sh-dma-engine",
+       .id             = 4,
+       .resource       = sh7372_usb_dmae1_resources,
+       .num_resources  = ARRAY_SIZE(sh7372_usb_dmae1_resources),
+       .dev            = {
+               .platform_data  = &usb_dma1_platform_data,
+       },
+};
+
 /* VPU */
 static struct uio_info vpu_platform_data = {
        .name = "VPU5HG",
@@ -829,6 +973,8 @@ static struct platform_device *sh7372_late_devices[] __initdata = {
        &dma0_device,
        &dma1_device,
        &dma2_device,
+       &usb_dma0_device,
+       &usb_dma1_device,
        &vpu_device,
        &veu0_device,
        &veu1_device,